Brooks Koepka claimed his first major championship win on Sunday when he emerged victorious at the 2017 U.S. Open Championship. The 27-year-old Koepka finished the tournament at -16, four strokes better than the second-place finishers.

One key to Koepka's game? The weight room. Koepka is a bonafide gym rat. Take a look at the sort of exercises he includes in his routine:

Koepka was even in the gym on Sunday morning, mere hours before the most important round of his life:

Koekpa's impressive rotational power, core stability and lower-body strength help him absolutely destroy golf balls. On the 18th hole during the final round of the U.S. Open, Koepka smashed his 3-wood an incredible 379.3 yards. His average club-head speed of 124.4 mph ranks fourth on the PGA Tour and his average driving distance of 307.6 yards ranks fifth. It's no coincidence that Koepka's training partner is none other than Dustin Johnson, whose average driving distance of 312.1 yards ranks first on the tour. Whatever these dudes are doing in the weight room, it's clearly working.

Brandon Hall
- Brandon Hall is an Assistant Content Director for STACK. He graduated from Lafayette College, where he played football and graduated with a Bachelor's degree in English.
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